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Subject[PATCH v1 1/2] drm/komeda: Update HW up-sampling on D71
Date
Updates HW up-sampling method according to the format type.

Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
---
.../gpu/drm/arm/display/komeda/d71/d71_component.c | 29 ++++++++++++++++++++++
1 file changed, 29 insertions(+)

diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
index f8846c6..dfc70f5 100644
--- a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
+++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
@@ -212,6 +212,35 @@ static void d71_layer_update(struct komeda_component *c,
malidp_write32(reg, BLK_P1_PTR_HIGH, upper_32_bits(addr));
}

+ if (fb->format->is_yuv) {
+ u32 upsampling = 0;
+
+ switch (kfb->format_caps->fourcc) {
+ case DRM_FORMAT_YUYV:
+ upsampling = fb->modifier ? LR_CHI422_BILINEAR :
+ LR_CHI422_REPLICATION;
+ break;
+ case DRM_FORMAT_UYVY:
+ upsampling = LR_CHI422_REPLICATION;
+ break;
+ case DRM_FORMAT_NV12:
+ case DRM_FORMAT_YUV420_8BIT:
+ case DRM_FORMAT_YUV420_10BIT:
+ case DRM_FORMAT_YUV420:
+ case DRM_FORMAT_P010:
+ /* these fmt support MPGE/JPEG both, here perfer JPEG*/
+ upsampling = LR_CHI420_JPEG;
+ break;
+ case DRM_FORMAT_X0L2:
+ upsampling = LR_CHI420_JPEG;
+ break;
+ default:
+ break;
+ }
+
+ malidp_write32(reg, LAYER_R_CONTROL, upsampling);
+ }
+
malidp_write32(reg, LAYER_FMT, kfb->format_caps->hw_id);
malidp_write32(reg, BLK_IN_SIZE, HV_SIZE(st->hsize, st->vsize));

--
1.9.1
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